I started out with over 222 to lose and still have 168 to go - I'd second the wemitts section, lots of threads from people in the same boat and challenges etc to keep you on track.
I was fairly similar weight to start and still have a way to go. I try to tackle it a stone at a time so I don't get overwhelmed. I see in your other thread you are doing myfitnesspal too I am doing slimming world but use mfp to log my food if you wanted to add me as a friend. Good luck for your Xmas goal!